diff --git a/Gemfile b/Gemfile
index b92d7b4..175fabe 100644
--- a/Gemfile
+++ b/Gemfile
@@ -3,7 +3,7 @@ source :rubygems
 gem "faraday", "~> 0.5.7"
 
 gem "excon", "~> 0.5.6"
-gem "yajl-ruby", "~> 0.8.1", :require => "yajl"
+gem "yajl-ruby", "~> 1.4.2", :require => "yajl"
 
 gem "activesupport", "~> 3.0.4"
 gem "i18n", "~> 0.5.0" # ActiveSupport dependency
diff --git a/Gemfile.lock b/Gemfile.lock
index 12f340c..2cc5eba 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -21,7 +21,7 @@ GEM
     rspec-expectations (2.1.0)
       diff-lcs (~> 1.1.2)
     rspec-mocks (2.1.0)
-    yajl-ruby (0.8.1)
+    yajl-ruby (1.4.2)
 
 PLATFORMS
   ruby
@@ -34,4 +34,4 @@ DEPENDENCIES
   i18n (~> 0.5.0)
   rake (~> 0.8.7)
   rspec (= 2.1.0)
-  yajl-ruby (~> 0.8.1)
+  yajl-ruby (~> 1.4.2)
diff --git a/pingdom-client.gemspec b/pingdom-client.gemspec
index fd391e4..6711459 100644
--- a/pingdom-client.gemspec
+++ b/pingdom-client.gemspec
@@ -46,7 +46,7 @@ Gem::Specification.new do |s|
     if Gem::Version.new(Gem::VERSION) >= Gem::Version.new('1.2.0') then
       s.add_runtime_dependency("faraday",       ["~> 0.5.7"])
       s.add_runtime_dependency("excon",         ["~> 0.5.6"])
-      s.add_runtime_dependency("yajl-ruby",     ["~> 0.8.1"])
+      s.add_runtime_dependency("yajl-ruby",     ">= 0.8.1", "< 1.5.0")
       s.add_runtime_dependency("activesupport", ["~> 3.0.4"])
       s.add_runtime_dependency("i18n",          ["~> 0.5.0"])
       
@@ -56,7 +56,7 @@ Gem::Specification.new do |s|
     else
       s.add_dependency("faraday",       ["~> 0.5.7"])
       s.add_dependency("excon",         ["~> 0.5.6"])
-      s.add_dependency("yajl-ruby",     ["~> 0.8.1"])
+      s.add_dependency("yajl-ruby",     ">= 0.8.1", "< 1.5.0")
       s.add_dependency("activesupport", ["~> 3.0.4"])
       s.add_dependency("i18n",          ["~> 0.5.0"])
       
@@ -67,7 +67,7 @@ Gem::Specification.new do |s|
   else
     s.add_dependency("faraday",       ["~> 0.5.7"])
     s.add_dependency("excon",         ["~> 0.5.6"])
-    s.add_dependency("yajl-ruby",     ["~> 0.8.1"])
+    s.add_dependency("yajl-ruby",     ">= 0.8.1", "< 1.5.0")
     s.add_dependency("activesupport", ["~> 3.0.4"])
     s.add_dependency("i18n",          ["~> 0.5.0"])